[PATCH py3 resend] dirstate: use iter.__next__ instead of iter.next

[Pulkit Goyal]

# HG changeset patch
# User Pulkit Goyal <7895pulkit at gmail.com>
# Date 1489720184 -19800
#      Fri Mar 17 08:39:44 2017 +0530
# Node ID f2efba4759b00ea56f11f667e208253685e8ea59
# Parent  a5bad127128d8f60060be53d161acfa7a32a17d5
dirstate: use iter.__next__ instead of iter.next

In Python 3 world, iter.next() is renamed to iter.__next__()

diff -r a5bad127128d -r f2efba4759b0 mercurial/dirstate.py
--- a/mercurial/dirstate.py	Wed Mar 15 15:48:57 2017 -0700
+++ b/mercurial/dirstate.py	Fri Mar 17 08:39:44 2017 +0530
@@ -1115,7 +1115,10 @@
             else:
                 # We may not have walked the full directory tree above,
                 # so stat and check everything we missed.
-                nf = iter(visit).next
+                if pycompat.ispy3:
+                    nf = iter(visit).__next__
+                else:
+                    nf = iter(visit).next
                 for st in util.statfiles([join(i) for i in visit]):
                     results[nf()] = st
         return results